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| - 9 - 12|

| - 9 - 12|
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2 votes

| - 9 - 12|

User Viera
by
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1 Answer

5 votes

|a| = a if a ≥ 0

|a| = -a if a < 0

|-9 - 12| = |-21| = -(-21) = 21

Answer: |-9 - 12| = 21

User Channs
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